Lighting fixture



FIG. 1 is a perspective view of a lighting fixture showing my new design;

FIG. 2 is a side elevational view thereof on an enlarged scale;

FIG. 3 is a top plan view thereof on an enlarged scale;

FIG. 4 is a rear view thereof on an enlarged scale, and

FIG. 5 is a bottom plan view thereof on an enlarged scale. 

The ornamental design for a lighting fixture, substantially as shown and described. 